Home / 31,653.92-43,691.04-19,710.20

Finding the Fourth Proportional to 31,653.92, 43,691.04 and 19,710.20

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Solution

The fourth proportional to 31,653.92, 43,691.04 and 19,710.20 is: 27,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,653.92 : 43,691.04 = 19,710.20 : x
  2. Step 2: Convert to fraction form
    31,653.92/43,691.04 = 19,710.20/x
  3. Step 3: Cross multiply
    31,653.92x = 43,691.04 × 19,710.20
  4. Step 4: Simplify right side
    31,653.92x = 861,158,918.15
  5. Step 5: Solve for x
    x = 861,158,918.15/31,653.92
  6. Step 6: Final answer
    x = 27,205.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.